Mercurial > hg
annotate mercurial/smartset.py @ 45658:6569b2371240
tests: back out accidentally queued changeset 0627cd03b1e9
I accidentally queued other people's patches on top of my own and
pushed mine along with theirs.
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Thu, 08 Oct 2020 23:14:41 -0700 |
parents | 9f70512ae2cf |
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1 # smartset.py - data structure for revision set |
11275 | 2 # |
3 # Copyright 2010 Matt Mackall <mpm@selenic.com> | |
4 # | |
5 # This software may be used and distributed according to the terms of the | |
6 # GNU General Public License version 2 or any later version. | |
7 | |
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8 from __future__ import absolute_import |
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9 |
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10 from .pycompat import getattr |
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11 from . import ( |
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12 encoding, |
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13 error, |
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14 pycompat, |
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15 util, |
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16 ) |
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17 from .utils import stringutil |
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18 |
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19 |
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20 def _typename(o): |
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21 return pycompat.sysbytes(type(o).__name__).lstrip(b'_') |
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22 |
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23 |
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24 class abstractsmartset(object): |
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25 def __nonzero__(self): |
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26 """True if the smartset is not empty""" |
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27 raise NotImplementedError() |
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28 |
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29 __bool__ = __nonzero__ |
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30 |
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31 def __contains__(self, rev): |
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32 """provide fast membership testing""" |
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33 raise NotImplementedError() |
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34 |
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35 def __iter__(self): |
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36 """iterate the set in the order it is supposed to be iterated""" |
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37 raise NotImplementedError() |
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38 |
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39 # Attributes containing a function to perform a fast iteration in a given |
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40 # direction. A smartset can have none, one, or both defined. |
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41 # |
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42 # Default value is None instead of a function returning None to avoid |
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43 # initializing an iterator just for testing if a fast method exists. |
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44 fastasc = None |
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45 fastdesc = None |
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46 |
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47 def isascending(self): |
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48 """True if the set will iterate in ascending order""" |
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49 raise NotImplementedError() |
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50 |
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51 def isdescending(self): |
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52 """True if the set will iterate in descending order""" |
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53 raise NotImplementedError() |
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54 |
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55 def istopo(self): |
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56 """True if the set will iterate in topographical order""" |
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57 raise NotImplementedError() |
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58 |
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59 def min(self): |
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60 """return the minimum element in the set""" |
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61 if self.fastasc is None: |
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62 v = min(self) |
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63 else: |
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64 for v in self.fastasc(): |
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65 break |
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66 else: |
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67 raise ValueError(b'arg is an empty sequence') |
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68 self.min = lambda: v |
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69 return v |
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70 |
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71 def max(self): |
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72 """return the maximum element in the set""" |
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73 if self.fastdesc is None: |
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74 return max(self) |
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75 else: |
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76 for v in self.fastdesc(): |
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77 break |
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78 else: |
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79 raise ValueError(b'arg is an empty sequence') |
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80 self.max = lambda: v |
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81 return v |
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82 |
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83 def first(self): |
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84 """return the first element in the set (user iteration perspective) |
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85 |
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86 Return None if the set is empty""" |
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87 raise NotImplementedError() |
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88 |
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89 def last(self): |
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90 """return the last element in the set (user iteration perspective) |
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91 |
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92 Return None if the set is empty""" |
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93 raise NotImplementedError() |
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94 |
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95 def __len__(self): |
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96 """return the length of the smartsets |
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97 |
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98 This can be expensive on smartset that could be lazy otherwise.""" |
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99 raise NotImplementedError() |
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100 |
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101 def reverse(self): |
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102 """reverse the expected iteration order""" |
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103 raise NotImplementedError() |
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104 |
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105 def sort(self, reverse=False): |
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106 """get the set to iterate in an ascending or descending order""" |
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107 raise NotImplementedError() |
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108 |
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109 def __and__(self, other): |
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110 """Returns a new object with the intersection of the two collections. |
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111 |
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112 This is part of the mandatory API for smartset.""" |
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113 if isinstance(other, fullreposet): |
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114 return self |
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115 return self.filter(other.__contains__, condrepr=other, cache=False) |
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116 |
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117 def __add__(self, other): |
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118 """Returns a new object with the union of the two collections. |
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119 |
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120 This is part of the mandatory API for smartset.""" |
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121 return addset(self, other) |
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122 |
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123 def __sub__(self, other): |
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124 """Returns a new object with the substraction of the two collections. |
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125 |
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126 This is part of the mandatory API for smartset.""" |
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127 c = other.__contains__ |
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128 return self.filter( |
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129 lambda r: not c(r), condrepr=(b'<not %r>', other), cache=False |
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130 ) |
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131 |
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132 def filter(self, condition, condrepr=None, cache=True): |
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133 """Returns this smartset filtered by condition as a new smartset. |
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134 |
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135 `condition` is a callable which takes a revision number and returns a |
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136 boolean. Optional `condrepr` provides a printable representation of |
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137 the given `condition`. |
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138 |
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139 This is part of the mandatory API for smartset.""" |
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140 # builtin cannot be cached. but do not needs to |
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141 if cache and util.safehasattr(condition, b'__code__'): |
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142 condition = util.cachefunc(condition) |
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143 return filteredset(self, condition, condrepr) |
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144 |
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145 def slice(self, start, stop): |
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146 """Return new smartset that contains selected elements from this set""" |
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147 if start < 0 or stop < 0: |
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148 raise error.ProgrammingError(b'negative index not allowed') |
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149 return self._slice(start, stop) |
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150 |
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151 def _slice(self, start, stop): |
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152 # sub classes may override this. start and stop must not be negative, |
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153 # but start > stop is allowed, which should be an empty set. |
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154 ys = [] |
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155 it = iter(self) |
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156 for x in pycompat.xrange(start): |
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157 y = next(it, None) |
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158 if y is None: |
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159 break |
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160 for x in pycompat.xrange(stop - start): |
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161 y = next(it, None) |
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162 if y is None: |
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163 break |
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164 ys.append(y) |
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165 return baseset(ys, datarepr=(b'slice=%d:%d %r', start, stop, self)) |
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166 |
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167 |
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168 class baseset(abstractsmartset): |
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169 """Basic data structure that represents a revset and contains the basic |
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170 operation that it should be able to perform. |
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171 |
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172 Every method in this class should be implemented by any smartset class. |
31019 | 173 |
174 This class could be constructed by an (unordered) set, or an (ordered) | |
175 list-like object. If a set is provided, it'll be sorted lazily. | |
176 | |
177 >>> x = [4, 0, 7, 6] | |
178 >>> y = [5, 6, 7, 3] | |
179 | |
180 Construct by a set: | |
181 >>> xs = baseset(set(x)) | |
182 >>> ys = baseset(set(y)) | |
183 >>> [list(i) for i in [xs + ys, xs & ys, xs - ys]] | |
184 [[0, 4, 6, 7, 3, 5], [6, 7], [0, 4]] | |
185 >>> [type(i).__name__ for i in [xs + ys, xs & ys, xs - ys]] | |
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186 ['addset', 'baseset', 'baseset'] |
31019 | 187 |
188 Construct by a list-like: | |
189 >>> xs = baseset(x) | |
190 >>> ys = baseset(i for i in y) | |
191 >>> [list(i) for i in [xs + ys, xs & ys, xs - ys]] | |
192 [[4, 0, 7, 6, 5, 3], [7, 6], [4, 0]] | |
193 >>> [type(i).__name__ for i in [xs + ys, xs & ys, xs - ys]] | |
194 ['addset', 'filteredset', 'filteredset'] | |
195 | |
196 Populate "_set" fields in the lists so set optimization may be used: | |
197 >>> [1 in xs, 3 in ys] | |
198 [False, True] | |
199 | |
200 Without sort(), results won't be changed: | |
201 >>> [list(i) for i in [xs + ys, xs & ys, xs - ys]] | |
202 [[4, 0, 7, 6, 5, 3], [7, 6], [4, 0]] | |
203 >>> [type(i).__name__ for i in [xs + ys, xs & ys, xs - ys]] | |
204 ['addset', 'filteredset', 'filteredset'] | |
205 | |
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206 With sort(), set optimization could be used: |
31019 | 207 >>> xs.sort(reverse=True) |
208 >>> [list(i) for i in [xs + ys, xs & ys, xs - ys]] | |
209 [[7, 6, 4, 0, 5, 3], [7, 6], [4, 0]] | |
210 >>> [type(i).__name__ for i in [xs + ys, xs & ys, xs - ys]] | |
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211 ['addset', 'baseset', 'baseset'] |
31019 | 212 |
213 >>> ys.sort() | |
214 >>> [list(i) for i in [xs + ys, xs & ys, xs - ys]] | |
215 [[7, 6, 4, 0, 3, 5], [7, 6], [4, 0]] | |
216 >>> [type(i).__name__ for i in [xs + ys, xs & ys, xs - ys]] | |
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217 ['addset', 'baseset', 'baseset'] |
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218 |
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219 istopo is preserved across set operations |
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220 >>> xs = baseset(set(x), istopo=True) |
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221 >>> rs = xs & ys |
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222 >>> type(rs).__name__ |
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223 'baseset' |
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224 >>> rs._istopo |
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225 True |
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226 """ |
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227 |
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228 def __init__(self, data=(), datarepr=None, istopo=False): |
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229 """ |
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230 datarepr: a tuple of (format, obj, ...), a function or an object that |
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231 provides a printable representation of the given data. |
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232 """ |
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233 self._ascending = None |
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234 self._istopo = istopo |
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235 if isinstance(data, set): |
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236 # converting set to list has a cost, do it lazily |
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237 self._set = data |
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238 # set has no order we pick one for stability purpose |
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239 self._ascending = True |
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240 else: |
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241 if not isinstance(data, list): |
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242 data = list(data) |
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243 self._list = data |
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244 self._datarepr = datarepr |
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245 |
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246 @util.propertycache |
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247 def _set(self): |
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248 return set(self._list) |
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249 |
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250 @util.propertycache |
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251 def _asclist(self): |
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252 asclist = self._list[:] |
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253 asclist.sort() |
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254 return asclist |
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255 |
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256 @util.propertycache |
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257 def _list(self): |
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258 # _list is only lazily constructed if we have _set |
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259 assert '_set' in self.__dict__ |
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260 return list(self._set) |
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261 |
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262 def __iter__(self): |
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263 if self._ascending is None: |
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264 return iter(self._list) |
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265 elif self._ascending: |
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266 return iter(self._asclist) |
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267 else: |
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268 return reversed(self._asclist) |
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269 |
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270 def fastasc(self): |
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271 return iter(self._asclist) |
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272 |
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273 def fastdesc(self): |
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274 return reversed(self._asclist) |
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275 |
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276 @util.propertycache |
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277 def __contains__(self): |
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278 return self._set.__contains__ |
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279 |
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280 def __nonzero__(self): |
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281 return bool(len(self)) |
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282 |
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283 __bool__ = __nonzero__ |
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284 |
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285 def sort(self, reverse=False): |
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286 self._ascending = not bool(reverse) |
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287 self._istopo = False |
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288 |
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289 def reverse(self): |
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290 if self._ascending is None: |
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291 self._list.reverse() |
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292 else: |
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293 self._ascending = not self._ascending |
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294 self._istopo = False |
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295 |
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296 def __len__(self): |
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297 if '_list' in self.__dict__: |
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298 return len(self._list) |
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299 else: |
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300 return len(self._set) |
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301 |
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302 def isascending(self): |
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303 """Returns True if the collection is ascending order, False if not. |
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304 |
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305 This is part of the mandatory API for smartset.""" |
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306 if len(self) <= 1: |
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307 return True |
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308 return self._ascending is not None and self._ascending |
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309 |
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310 def isdescending(self): |
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311 """Returns True if the collection is descending order, False if not. |
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312 |
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313 This is part of the mandatory API for smartset.""" |
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314 if len(self) <= 1: |
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315 return True |
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316 return self._ascending is not None and not self._ascending |
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317 |
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318 def istopo(self): |
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319 """Is the collection is in topographical order or not. |
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320 |
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321 This is part of the mandatory API for smartset.""" |
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322 if len(self) <= 1: |
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323 return True |
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324 return self._istopo |
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325 |
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326 def first(self): |
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327 if self: |
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328 if self._ascending is None: |
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329 return self._list[0] |
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330 elif self._ascending: |
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331 return self._asclist[0] |
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332 else: |
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333 return self._asclist[-1] |
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334 return None |
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335 |
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336 def last(self): |
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337 if self: |
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338 if self._ascending is None: |
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339 return self._list[-1] |
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340 elif self._ascending: |
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341 return self._asclist[-1] |
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342 else: |
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343 return self._asclist[0] |
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344 return None |
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345 |
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346 def _fastsetop(self, other, op): |
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347 # try to use native set operations as fast paths |
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348 if ( |
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349 type(other) is baseset |
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350 and '_set' in other.__dict__ |
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351 and '_set' in self.__dict__ |
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352 and self._ascending is not None |
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353 ): |
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354 s = baseset( |
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355 data=getattr(self._set, op)(other._set), istopo=self._istopo |
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356 ) |
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357 s._ascending = self._ascending |
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358 else: |
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359 s = getattr(super(baseset, self), op)(other) |
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360 return s |
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361 |
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362 def __and__(self, other): |
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363 return self._fastsetop(other, b'__and__') |
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364 |
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365 def __sub__(self, other): |
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366 return self._fastsetop(other, b'__sub__') |
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367 |
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368 def _slice(self, start, stop): |
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369 # creating new list should be generally cheaper than iterating items |
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370 if self._ascending is None: |
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371 return baseset(self._list[start:stop], istopo=self._istopo) |
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372 |
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373 data = self._asclist |
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374 if not self._ascending: |
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375 start, stop = max(len(data) - stop, 0), max(len(data) - start, 0) |
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376 s = baseset(data[start:stop], istopo=self._istopo) |
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377 s._ascending = self._ascending |
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378 return s |
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379 |
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380 @encoding.strmethod |
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381 def __repr__(self): |
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382 d = {None: b'', False: b'-', True: b'+'}[self._ascending] |
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383 s = stringutil.buildrepr(self._datarepr) |
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384 if not s: |
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385 l = self._list |
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386 # if _list has been built from a set, it might have a different |
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387 # order from one python implementation to another. |
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388 # We fallback to the sorted version for a stable output. |
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389 if self._ascending is not None: |
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390 l = self._asclist |
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391 s = pycompat.byterepr(l) |
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392 return b'<%s%s %s>' % (_typename(self), d, s) |
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393 |
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394 |
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395 class filteredset(abstractsmartset): |
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396 """Duck type for baseset class which iterates lazily over the revisions in |
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397 the subset and contains a function which tests for membership in the |
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398 revset |
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399 """ |
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400 |
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401 def __init__(self, subset, condition=lambda x: True, condrepr=None): |
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402 """ |
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403 condition: a function that decide whether a revision in the subset |
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404 belongs to the revset or not. |
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405 condrepr: a tuple of (format, obj, ...), a function or an object that |
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406 provides a printable representation of the given condition. |
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407 """ |
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408 self._subset = subset |
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409 self._condition = condition |
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410 self._condrepr = condrepr |
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411 |
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412 def __contains__(self, x): |
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413 return x in self._subset and self._condition(x) |
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414 |
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415 def __iter__(self): |
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416 return self._iterfilter(self._subset) |
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417 |
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418 def _iterfilter(self, it): |
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419 cond = self._condition |
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420 for x in it: |
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421 if cond(x): |
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422 yield x |
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423 |
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424 @property |
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425 def fastasc(self): |
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426 it = self._subset.fastasc |
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427 if it is None: |
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428 return None |
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429 return lambda: self._iterfilter(it()) |
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430 |
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431 @property |
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432 def fastdesc(self): |
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433 it = self._subset.fastdesc |
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434 if it is None: |
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435 return None |
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436 return lambda: self._iterfilter(it()) |
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437 |
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438 def __nonzero__(self): |
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439 fast = None |
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440 candidates = [ |
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441 self.fastasc if self.isascending() else None, |
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442 self.fastdesc if self.isdescending() else None, |
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443 self.fastasc, |
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444 self.fastdesc, |
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445 ] |
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446 for candidate in candidates: |
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447 if candidate is not None: |
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448 fast = candidate |
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449 break |
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450 |
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451 if fast is not None: |
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452 it = fast() |
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453 else: |
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454 it = self |
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455 |
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456 for r in it: |
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457 return True |
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458 return False |
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459 |
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460 __bool__ = __nonzero__ |
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461 |
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462 def __len__(self): |
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463 # Basic implementation to be changed in future patches. |
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464 # until this gets improved, we use generator expression |
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465 # here, since list comprehensions are free to call __len__ again |
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466 # causing infinite recursion |
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467 l = baseset(r for r in self) |
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468 return len(l) |
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469 |
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470 def sort(self, reverse=False): |
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471 self._subset.sort(reverse=reverse) |
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472 |
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473 def reverse(self): |
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474 self._subset.reverse() |
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475 |
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476 def isascending(self): |
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477 return self._subset.isascending() |
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478 |
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479 def isdescending(self): |
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480 return self._subset.isdescending() |
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481 |
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482 def istopo(self): |
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483 return self._subset.istopo() |
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484 |
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485 def first(self): |
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486 for x in self: |
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487 return x |
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488 return None |
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489 |
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490 def last(self): |
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491 it = None |
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492 if self.isascending(): |
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493 it = self.fastdesc |
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494 elif self.isdescending(): |
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495 it = self.fastasc |
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496 if it is not None: |
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497 for x in it(): |
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498 return x |
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499 return None # empty case |
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500 else: |
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501 x = None |
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502 for x in self: |
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503 pass |
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504 return x |
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505 |
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506 @encoding.strmethod |
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507 def __repr__(self): |
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508 xs = [pycompat.byterepr(self._subset)] |
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509 s = stringutil.buildrepr(self._condrepr) |
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510 if s: |
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511 xs.append(s) |
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512 return b'<%s %s>' % (_typename(self), b', '.join(xs)) |
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513 |
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514 |
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515 def _iterordered(ascending, iter1, iter2): |
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516 """produce an ordered iteration from two iterators with the same order |
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517 |
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518 The ascending is used to indicated the iteration direction. |
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519 """ |
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520 choice = max |
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521 if ascending: |
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522 choice = min |
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523 |
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524 val1 = None |
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525 val2 = None |
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526 try: |
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527 # Consume both iterators in an ordered way until one is empty |
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528 while True: |
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529 if val1 is None: |
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530 val1 = next(iter1) |
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531 if val2 is None: |
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532 val2 = next(iter2) |
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533 n = choice(val1, val2) |
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534 yield n |
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535 if val1 == n: |
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536 val1 = None |
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537 if val2 == n: |
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538 val2 = None |
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539 except StopIteration: |
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540 # Flush any remaining values and consume the other one |
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541 it = iter2 |
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542 if val1 is not None: |
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543 yield val1 |
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|
544 it = iter1 |
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545 elif val2 is not None: |
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546 # might have been equality and both are empty |
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547 yield val2 |
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548 for val in it: |
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549 yield val |
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|
550 |
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551 |
22793
ff6689b47e48
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|
552 class addset(abstractsmartset): |
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|
553 """Represent the addition of two sets |
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diff
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|
554 |
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20707
diff
changeset
|
555 Wrapper structure for lazily adding two structures without losing much |
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621c94378d0d
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Lucas Moscovicz <lmoscovicz@fb.com>
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diff
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|
556 performance on the __contains__ method |
20708
17c89e5a5627
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diff
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|
557 |
20712
c152e538b85b
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|
558 If the ascending attribute is set, that means the two structures are |
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|
559 ordered in either an ascending or descending way. Therefore, we can add |
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7731a2281cf0
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Mads Kiilerich <madski@unity3d.com>
parents:
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|
560 them maintaining the order by iterating over both at the same time |
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|
561 |
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562 >>> xs = baseset([0, 3, 2]) |
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|
563 >>> ys = baseset([5, 2, 4]) |
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|
564 |
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565 >>> rs = addset(xs, ys) |
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|
566 >>> bool(rs), 0 in rs, 1 in rs, 5 in rs, rs.first(), rs.last() |
263bbed1833c
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|
567 (True, True, False, True, 0, 4) |
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|
568 >>> rs = addset(xs, baseset([])) |
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|
569 >>> bool(rs), 0 in rs, 1 in rs, rs.first(), rs.last() |
263bbed1833c
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|
570 (True, True, False, 0, 2) |
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|
571 >>> rs = addset(baseset([]), baseset([])) |
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|
572 >>> bool(rs), 0 in rs, rs.first(), rs.last() |
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573 (False, False, None, None) |
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|
574 |
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|
575 iterate unsorted: |
263bbed1833c
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|
576 >>> rs = addset(xs, ys) |
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diff
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|
577 >>> # (use generator because pypy could call len()) |
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diff
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|
578 >>> list(x for x in rs) # without _genlist |
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|
579 [0, 3, 2, 5, 4] |
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|
580 >>> assert not rs._genlist |
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|
581 >>> len(rs) |
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|
582 5 |
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|
583 >>> [x for x in rs] # with _genlist |
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|
584 [0, 3, 2, 5, 4] |
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|
585 >>> assert rs._genlist |
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|
586 |
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|
587 iterate ascending: |
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|
588 >>> rs = addset(xs, ys, ascending=True) |
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|
589 >>> # (use generator because pypy could call len()) |
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|
590 >>> list(x for x in rs), list(x for x in rs.fastasc()) # without _asclist |
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|
591 ([0, 2, 3, 4, 5], [0, 2, 3, 4, 5]) |
263bbed1833c
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diff
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|
592 >>> assert not rs._asclist |
25115
5548f558db3d
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Pierre-Yves David <pierre-yves.david@fb.com>
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diff
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|
593 >>> len(rs) |
5548f558db3d
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|
594 5 |
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diff
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|
595 >>> [x for x in rs], [x for x in rs.fastasc()] |
5548f558db3d
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diff
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|
596 ([0, 2, 3, 4, 5], [0, 2, 3, 4, 5]) |
25024
263bbed1833c
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|
597 >>> assert rs._asclist |
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|
598 |
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|
599 iterate descending: |
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|
600 >>> rs = addset(xs, ys, ascending=False) |
28717
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|
601 >>> # (use generator because pypy could call len()) |
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|
602 >>> list(x for x in rs), list(x for x in rs.fastdesc()) # without _asclist |
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603 ([5, 4, 3, 2, 0], [5, 4, 3, 2, 0]) |
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604 >>> assert not rs._asclist |
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605 >>> len(rs) |
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606 5 |
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607 >>> [x for x in rs], [x for x in rs.fastdesc()] |
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608 ([5, 4, 3, 2, 0], [5, 4, 3, 2, 0]) |
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609 >>> assert rs._asclist |
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610 |
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611 iterate ascending without fastasc: |
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612 >>> rs = addset(xs, generatorset(ys), ascending=True) |
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613 >>> assert rs.fastasc is None |
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614 >>> [x for x in rs] |
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615 [0, 2, 3, 4, 5] |
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616 |
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617 iterate descending without fastdesc: |
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618 >>> rs = addset(generatorset(xs), ys, ascending=False) |
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619 >>> assert rs.fastdesc is None |
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620 >>> [x for x in rs] |
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621 [5, 4, 3, 2, 0] |
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622 """ |
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623 |
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624 def __init__(self, revs1, revs2, ascending=None): |
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625 self._r1 = revs1 |
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626 self._r2 = revs2 |
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627 self._iter = None |
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628 self._ascending = ascending |
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629 self._genlist = None |
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630 self._asclist = None |
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631 |
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632 def __len__(self): |
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633 return len(self._list) |
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634 |
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635 def __nonzero__(self): |
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636 return bool(self._r1) or bool(self._r2) |
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637 |
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638 __bool__ = __nonzero__ |
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639 |
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640 @util.propertycache |
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641 def _list(self): |
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642 if not self._genlist: |
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643 self._genlist = baseset(iter(self)) |
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644 return self._genlist |
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645 |
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646 def __iter__(self): |
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647 """Iterate over both collections without repeating elements |
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648 |
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649 If the ascending attribute is not set, iterate over the first one and |
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650 then over the second one checking for membership on the first one so we |
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651 dont yield any duplicates. |
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652 |
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653 If the ascending attribute is set, iterate over both collections at the |
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654 same time, yielding only one value at a time in the given order. |
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655 """ |
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656 if self._ascending is None: |
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657 if self._genlist: |
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658 return iter(self._genlist) |
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659 |
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660 def arbitraryordergen(): |
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661 for r in self._r1: |
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662 yield r |
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663 inr1 = self._r1.__contains__ |
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664 for r in self._r2: |
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665 if not inr1(r): |
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666 yield r |
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667 |
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668 return arbitraryordergen() |
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669 # try to use our own fast iterator if it exists |
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670 self._trysetasclist() |
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671 if self._ascending: |
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672 attr = b'fastasc' |
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673 else: |
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674 attr = b'fastdesc' |
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675 it = getattr(self, attr) |
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676 if it is not None: |
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677 return it() |
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678 # maybe half of the component supports fast |
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679 # get iterator for _r1 |
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680 iter1 = getattr(self._r1, attr) |
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681 if iter1 is None: |
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682 # let's avoid side effect (not sure it matters) |
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683 iter1 = iter(sorted(self._r1, reverse=not self._ascending)) |
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684 else: |
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685 iter1 = iter1() |
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686 # get iterator for _r2 |
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687 iter2 = getattr(self._r2, attr) |
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688 if iter2 is None: |
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689 # let's avoid side effect (not sure it matters) |
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690 iter2 = iter(sorted(self._r2, reverse=not self._ascending)) |
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691 else: |
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692 iter2 = iter2() |
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693 return _iterordered(self._ascending, iter1, iter2) |
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694 |
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695 def _trysetasclist(self): |
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696 """populate the _asclist attribute if possible and necessary""" |
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697 if self._genlist is not None and self._asclist is None: |
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698 self._asclist = sorted(self._genlist) |
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699 |
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700 @property |
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701 def fastasc(self): |
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702 self._trysetasclist() |
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703 if self._asclist is not None: |
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704 return self._asclist.__iter__ |
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705 iter1 = self._r1.fastasc |
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706 iter2 = self._r2.fastasc |
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707 if None in (iter1, iter2): |
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708 return None |
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709 return lambda: _iterordered(True, iter1(), iter2()) |
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710 |
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711 @property |
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712 def fastdesc(self): |
22859
513c0ba61db8
addset: do lazy sorting
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22857
diff
changeset
|
713 self._trysetasclist() |
513c0ba61db8
addset: do lazy sorting
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22857
diff
changeset
|
714 if self._asclist is not None: |
513c0ba61db8
addset: do lazy sorting
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22857
diff
changeset
|
715 return self._asclist.__reversed__ |
22742
6bbc26adcc6a
addset: offer a fastasc and fastdesc methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22741
diff
changeset
|
716 iter1 = self._r1.fastdesc |
6bbc26adcc6a
addset: offer a fastasc and fastdesc methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22741
diff
changeset
|
717 iter2 = self._r2.fastdesc |
6bbc26adcc6a
addset: offer a fastasc and fastdesc methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22741
diff
changeset
|
718 if None in (iter1, iter2): |
6bbc26adcc6a
addset: offer a fastasc and fastdesc methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22741
diff
changeset
|
719 return None |
25131
adfe4d9680bf
revset: extract addset._iterordered to free function
Yuya Nishihara <yuya@tcha.org>
parents:
25130
diff
changeset
|
720 return lambda: _iterordered(False, iter1(), iter2()) |
22741
ef2c1ea8fb2c
addset: split simple and ordered iteration
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22740
diff
changeset
|
721 |
20694
621c94378d0d
revset: added addset class with its basic methods
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20693
diff
changeset
|
722 def __contains__(self, x): |
621c94378d0d
revset: added addset class with its basic methods
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20693
diff
changeset
|
723 return x in self._r1 or x in self._r2 |
621c94378d0d
revset: added addset class with its basic methods
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20693
diff
changeset
|
724 |
20724
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
725 def sort(self, reverse=False): |
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
726 """Sort the added set |
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
727 |
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
728 For this we use the cached list with all the generated values and if we |
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
729 know they are ascending or descending we can sort them in a smart way. |
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
730 """ |
22859
513c0ba61db8
addset: do lazy sorting
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22857
diff
changeset
|
731 self._ascending = not reverse |
20724
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
732 |
20733
adf4ec7e6f60
revset: added isascending and isdescending methods to _addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20732
diff
changeset
|
733 def isascending(self): |
adf4ec7e6f60
revset: added isascending and isdescending methods to _addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20732
diff
changeset
|
734 return self._ascending is not None and self._ascending |
adf4ec7e6f60
revset: added isascending and isdescending methods to _addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20732
diff
changeset
|
735 |
adf4ec7e6f60
revset: added isascending and isdescending methods to _addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20732
diff
changeset
|
736 def isdescending(self): |
adf4ec7e6f60
revset: added isascending and isdescending methods to _addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20732
diff
changeset
|
737 return self._ascending is not None and not self._ascending |
adf4ec7e6f60
revset: added isascending and isdescending methods to _addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20732
diff
changeset
|
738 |
29346
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
739 def istopo(self): |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
740 # not worth the trouble asserting if the two sets combined are still |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
741 # in topographical order. Use the sort() predicate to explicitly sort |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
742 # again instead. |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
743 return False |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
744 |
20723
fb9852c46a42
revset: added reverse method to addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20722
diff
changeset
|
745 def reverse(self): |
22859
513c0ba61db8
addset: do lazy sorting
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22857
diff
changeset
|
746 if self._ascending is None: |
513c0ba61db8
addset: do lazy sorting
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22857
diff
changeset
|
747 self._list.reverse() |
513c0ba61db8
addset: do lazy sorting
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22857
diff
changeset
|
748 else: |
20723
fb9852c46a42
revset: added reverse method to addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20722
diff
changeset
|
749 self._ascending = not self._ascending |
fb9852c46a42
revset: added reverse method to addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20722
diff
changeset
|
750 |
22810
7f97cb12782f
addset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22809
diff
changeset
|
751 def first(self): |
23127
7361d8244efb
addset: fix `first` and `last` on sorted addset (issue4426)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23115
diff
changeset
|
752 for x in self: |
7361d8244efb
addset: fix `first` and `last` on sorted addset (issue4426)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23115
diff
changeset
|
753 return x |
22810
7f97cb12782f
addset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22809
diff
changeset
|
754 return None |
7f97cb12782f
addset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22809
diff
changeset
|
755 |
7f97cb12782f
addset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22809
diff
changeset
|
756 def last(self): |
23127
7361d8244efb
addset: fix `first` and `last` on sorted addset (issue4426)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23115
diff
changeset
|
757 self.reverse() |
7361d8244efb
addset: fix `first` and `last` on sorted addset (issue4426)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23115
diff
changeset
|
758 val = self.first() |
7361d8244efb
addset: fix `first` and `last` on sorted addset (issue4426)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23115
diff
changeset
|
759 self.reverse() |
7361d8244efb
addset: fix `first` and `last` on sorted addset (issue4426)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23115
diff
changeset
|
760 return val |
22810
7f97cb12782f
addset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22809
diff
changeset
|
761 |
35901
f0827211eb1f
py3: build repr() of smartset as bytes then convert to str
Yuya Nishihara <yuya@tcha.org>
parents:
35838
diff
changeset
|
762 @encoding.strmethod |
24457
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
763 def __repr__(self): |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
764 d = {None: b'', False: b'-', True: b'+'}[self._ascending] |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
765 return b'<%s%s %r, %r>' % (_typename(self), d, self._r1, self._r2) |
24457
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
766 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
40233
diff
changeset
|
767 |
22795
c21342159fad
generatorset: drop the leading underscore in the class name
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22794
diff
changeset
|
768 class generatorset(abstractsmartset): |
20705
9cc2249a9461
revset: made generatorset a private class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20703
diff
changeset
|
769 """Wrap a generator for lazy iteration |
9cc2249a9461
revset: made generatorset a private class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20703
diff
changeset
|
770 |
9cc2249a9461
revset: made generatorset a private class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20703
diff
changeset
|
771 Wrapper structure for generators that provides lazy membership and can |
20540
fa16c710a3d8
revset: added cached generated list on generatorset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20538
diff
changeset
|
772 be iterated more than once. |
fa16c710a3d8
revset: added cached generated list on generatorset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20538
diff
changeset
|
773 When asked for membership it generates values until either it finds the |
fa16c710a3d8
revset: added cached generated list on generatorset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20538
diff
changeset
|
774 requested one or has gone through all the elements in the generator |
33109
247bae545061
smartset: fix generatorset.last() to not return the first element (issue5609)
Yuya Nishihara <yuya@tcha.org>
parents:
33072
diff
changeset
|
775 |
247bae545061
smartset: fix generatorset.last() to not return the first element (issue5609)
Yuya Nishihara <yuya@tcha.org>
parents:
33072
diff
changeset
|
776 >>> xs = generatorset([0, 1, 4], iterasc=True) |
247bae545061
smartset: fix generatorset.last() to not return the first element (issue5609)
Yuya Nishihara <yuya@tcha.org>
parents:
33072
diff
changeset
|
777 >>> assert xs.last() == xs.last() |
247bae545061
smartset: fix generatorset.last() to not return the first element (issue5609)
Yuya Nishihara <yuya@tcha.org>
parents:
33072
diff
changeset
|
778 >>> xs.last() # cached |
247bae545061
smartset: fix generatorset.last() to not return the first element (issue5609)
Yuya Nishihara <yuya@tcha.org>
parents:
33072
diff
changeset
|
779 4 |
20540
fa16c710a3d8
revset: added cached generated list on generatorset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20538
diff
changeset
|
780 """ |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
40233
diff
changeset
|
781 |
35501
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
782 def __new__(cls, gen, iterasc=None): |
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
783 if iterasc is None: |
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
784 typ = cls |
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
785 elif iterasc: |
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
786 typ = _generatorsetasc |
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
787 else: |
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
788 typ = _generatorsetdesc |
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
789 |
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
790 return super(generatorset, cls).__new__(typ) |
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
791 |
22755
f9a825b593be
generatorset: make it possible to use gen as fastasc or fastdesc
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22754
diff
changeset
|
792 def __init__(self, gen, iterasc=None): |
20739
1b4f2399f3c4
revset: add documentation and comment for _generatorset
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20738
diff
changeset
|
793 """ |
1b4f2399f3c4
revset: add documentation and comment for _generatorset
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20738
diff
changeset
|
794 gen: a generator producing the values for the generatorset. |
1b4f2399f3c4
revset: add documentation and comment for _generatorset
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20738
diff
changeset
|
795 """ |
20536
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
796 self._gen = gen |
22798
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
797 self._asclist = None |
20536
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
798 self._cache = {} |
22796
43f664bf2e1e
generatorset: stop using a base as the _genlist
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22795
diff
changeset
|
799 self._genlist = [] |
20703
e07b1fd30805
revset: added sort methods to generatorsets
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20695
diff
changeset
|
800 self._finished = False |
22800
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
801 self._ascending = True |
20540
fa16c710a3d8
revset: added cached generated list on generatorset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20538
diff
changeset
|
802 |
22739
4ed47a1b2d24
generatorset: implement __nonzero__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22738
diff
changeset
|
803 def __nonzero__(self): |
24936
2aa94b6fe51c
revset: make generatorset.__nonzero__ lazy
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24932
diff
changeset
|
804 # Do not use 'for r in self' because it will enforce the iteration |
2aa94b6fe51c
revset: make generatorset.__nonzero__ lazy
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24932
diff
changeset
|
805 # order (default ascending), possibly unrolling a whole descending |
2aa94b6fe51c
revset: make generatorset.__nonzero__ lazy
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24932
diff
changeset
|
806 # iterator. |
2aa94b6fe51c
revset: make generatorset.__nonzero__ lazy
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24932
diff
changeset
|
807 if self._genlist: |
2aa94b6fe51c
revset: make generatorset.__nonzero__ lazy
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24932
diff
changeset
|
808 return True |
2aa94b6fe51c
revset: make generatorset.__nonzero__ lazy
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24932
diff
changeset
|
809 for r in self._consumegen(): |
22739
4ed47a1b2d24
generatorset: implement __nonzero__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22738
diff
changeset
|
810 return True |
4ed47a1b2d24
generatorset: implement __nonzero__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22738
diff
changeset
|
811 return False |
4ed47a1b2d24
generatorset: implement __nonzero__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22738
diff
changeset
|
812 |
31476
413b44003462
py3: add __bool__ to every class defining __nonzero__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
31446
diff
changeset
|
813 __bool__ = __nonzero__ |
413b44003462
py3: add __bool__ to every class defining __nonzero__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
31446
diff
changeset
|
814 |
20536
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
815 def __contains__(self, x): |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
816 if x in self._cache: |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
817 return self._cache[x] |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
818 |
20828
3210b7930899
revset: improve performance of _generatorset.__contains__ (issue 4201)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20780
diff
changeset
|
819 # Use new values only, as existing values would be cached. |
3210b7930899
revset: improve performance of _generatorset.__contains__ (issue 4201)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20780
diff
changeset
|
820 for l in self._consumegen(): |
20634
f2bb7ba59456
revset: changed generatorset code to remove unnecesary function call
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20613
diff
changeset
|
821 if l == x: |
f2bb7ba59456
revset: changed generatorset code to remove unnecesary function call
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20613
diff
changeset
|
822 return True |
20536
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
823 |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
824 self._cache[x] = False |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
825 return False |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
826 |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
827 def __iter__(self): |
22800
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
828 if self._ascending: |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
829 it = self.fastasc |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
830 else: |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
831 it = self.fastdesc |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
832 if it is not None: |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
833 return it() |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
834 # we need to consume the iterator |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
835 for x in self._consumegen(): |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
836 pass |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
837 # recall the same code |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
838 return iter(self) |
22797
61ecabeeadb3
generatorset: move iteration code into _iterator
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22796
diff
changeset
|
839 |
61ecabeeadb3
generatorset: move iteration code into _iterator
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22796
diff
changeset
|
840 def _iterator(self): |
20833
47d43e2323c5
revset: fix generatorset race condition
Durham Goode <durham@fb.com>
parents:
20829
diff
changeset
|
841 if self._finished: |
22670
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
842 return iter(self._genlist) |
20833
47d43e2323c5
revset: fix generatorset race condition
Durham Goode <durham@fb.com>
parents:
20829
diff
changeset
|
843 |
22494
14f6cebfcb8a
revset: document the choice made in __generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22487
diff
changeset
|
844 # We have to use this complex iteration strategy to allow multiple |
14f6cebfcb8a
revset: document the choice made in __generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22487
diff
changeset
|
845 # iterations at the same time. We need to be able to catch revision |
23139
e53f6b72a0e4
spelling: fixes from proofreading of spell checker issues
Mads Kiilerich <madski@unity3d.com>
parents:
23127
diff
changeset
|
846 # removed from _consumegen and added to genlist in another instance. |
22494
14f6cebfcb8a
revset: document the choice made in __generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22487
diff
changeset
|
847 # |
14f6cebfcb8a
revset: document the choice made in __generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22487
diff
changeset
|
848 # Getting rid of it would provide an about 15% speed up on this |
14f6cebfcb8a
revset: document the choice made in __generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22487
diff
changeset
|
849 # iteration. |
20833
47d43e2323c5
revset: fix generatorset race condition
Durham Goode <durham@fb.com>
parents:
20829
diff
changeset
|
850 genlist = self._genlist |
31446
9a94239e4f12
py3: use next() to obtain next item from inner generator of generatorset
Yuya Nishihara <yuya@tcha.org>
parents:
31127
diff
changeset
|
851 nextgen = self._consumegen() |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
40233
diff
changeset
|
852 _len, _next = len, next # cache global lookup |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
40233
diff
changeset
|
853 |
22670
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
854 def gen(): |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
855 i = 0 |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
856 while True: |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
857 if i < _len(genlist): |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
858 yield genlist[i] |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
859 else: |
32977
27ba0d8dc26c
py3: catch StopIteration from next() in generatorset
Martin von Zweigbergk <martinvonz@google.com>
parents:
32821
diff
changeset
|
860 try: |
27ba0d8dc26c
py3: catch StopIteration from next() in generatorset
Martin von Zweigbergk <martinvonz@google.com>
parents:
32821
diff
changeset
|
861 yield _next(nextgen) |
27ba0d8dc26c
py3: catch StopIteration from next() in generatorset
Martin von Zweigbergk <martinvonz@google.com>
parents:
32821
diff
changeset
|
862 except StopIteration: |
27ba0d8dc26c
py3: catch StopIteration from next() in generatorset
Martin von Zweigbergk <martinvonz@google.com>
parents:
32821
diff
changeset
|
863 return |
22670
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
864 i += 1 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
40233
diff
changeset
|
865 |
22670
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
866 return gen() |
20828
3210b7930899
revset: improve performance of _generatorset.__contains__ (issue 4201)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20780
diff
changeset
|
867 |
3210b7930899
revset: improve performance of _generatorset.__contains__ (issue 4201)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20780
diff
changeset
|
868 def _consumegen(self): |
22528
b6dc3b79bb25
revset: avoid in loop lookup in _generatorset._consumegen
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22527
diff
changeset
|
869 cache = self._cache |
b6dc3b79bb25
revset: avoid in loop lookup in _generatorset._consumegen
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22527
diff
changeset
|
870 genlist = self._genlist.append |
20634
f2bb7ba59456
revset: changed generatorset code to remove unnecesary function call
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20613
diff
changeset
|
871 for item in self._gen: |
22528
b6dc3b79bb25
revset: avoid in loop lookup in _generatorset._consumegen
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22527
diff
changeset
|
872 cache[item] = True |
b6dc3b79bb25
revset: avoid in loop lookup in _generatorset._consumegen
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22527
diff
changeset
|
873 genlist(item) |
20634
f2bb7ba59456
revset: changed generatorset code to remove unnecesary function call
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20613
diff
changeset
|
874 yield item |
22798
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
875 if not self._finished: |
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
876 self._finished = True |
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
877 asc = self._genlist[:] |
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
878 asc.sort() |
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
879 self._asclist = asc |
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
880 self.fastasc = asc.__iter__ |
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
881 self.fastdesc = asc.__reversed__ |
20703
e07b1fd30805
revset: added sort methods to generatorsets
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20695
diff
changeset
|
882 |
22996
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
883 def __len__(self): |
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
884 for x in self._consumegen(): |
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
885 pass |
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
886 return len(self._genlist) |
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
887 |
20703
e07b1fd30805
revset: added sort methods to generatorsets
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20695
diff
changeset
|
888 def sort(self, reverse=False): |
22800
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
889 self._ascending = not reverse |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
890 |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
891 def reverse(self): |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
892 self._ascending = not self._ascending |
20703
e07b1fd30805
revset: added sort methods to generatorsets
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20695
diff
changeset
|
893 |
22801
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
894 def isascending(self): |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
895 return self._ascending |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
896 |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
897 def isdescending(self): |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
898 return not self._ascending |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
899 |
29346
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
900 def istopo(self): |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
901 # not worth the trouble asserting if the two sets combined are still |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
902 # in topographical order. Use the sort() predicate to explicitly sort |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
903 # again instead. |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
904 return False |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
905 |
22811
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
906 def first(self): |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
907 if self._ascending: |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
908 it = self.fastasc |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
909 else: |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
910 it = self.fastdesc |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
911 if it is None: |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
912 # we need to consume all and try again |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
913 for x in self._consumegen(): |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
914 pass |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
915 return self.first() |
25146
f542a2c89b60
generatorset: use 'next()' to simplify the code
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25145
diff
changeset
|
916 return next(it(), None) |
22811
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
917 |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
918 def last(self): |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
919 if self._ascending: |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
920 it = self.fastdesc |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
921 else: |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
922 it = self.fastasc |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
923 if it is None: |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
924 # we need to consume all and try again |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
925 for x in self._consumegen(): |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
926 pass |
33109
247bae545061
smartset: fix generatorset.last() to not return the first element (issue5609)
Yuya Nishihara <yuya@tcha.org>
parents:
33072
diff
changeset
|
927 return self.last() |
25146
f542a2c89b60
generatorset: use 'next()' to simplify the code
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25145
diff
changeset
|
928 return next(it(), None) |
22811
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
929 |
35901
f0827211eb1f
py3: build repr() of smartset as bytes then convert to str
Yuya Nishihara <yuya@tcha.org>
parents:
35838
diff
changeset
|
930 @encoding.strmethod |
24457
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
931 def __repr__(self): |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
932 d = {False: b'-', True: b'+'}[self._ascending] |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
933 return b'<%s%s>' % (_typename(self), d) |
35501
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
934 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
40233
diff
changeset
|
935 |
35501
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
936 class _generatorsetasc(generatorset): |
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937 """Special case of generatorset optimized for ascending generators.""" |
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|
938 |
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|
939 fastasc = generatorset._iterator |
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|
940 |
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|
941 def __contains__(self, x): |
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|
942 if x in self._cache: |
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|
943 return self._cache[x] |
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|
944 |
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|
945 # Use new values only, as existing values would be cached. |
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|
946 for l in self._consumegen(): |
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|
947 if l == x: |
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|
948 return True |
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|
949 if l > x: |
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|
950 break |
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|
951 |
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|
952 self._cache[x] = False |
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|
953 return False |
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|
954 |
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|
955 |
35501
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|
956 class _generatorsetdesc(generatorset): |
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|
957 """Special case of generatorset optimized for descending generators.""" |
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|
958 |
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|
959 fastdesc = generatorset._iterator |
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|
960 |
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|
961 def __contains__(self, x): |
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962 if x in self._cache: |
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|
963 return self._cache[x] |
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|
964 |
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|
965 # Use new values only, as existing values would be cached. |
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|
966 for l in self._consumegen(): |
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967 if l == x: |
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|
968 return True |
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|
969 if l < x: |
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|
970 break |
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|
971 |
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|
972 self._cache[x] = False |
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|
973 return False |
24457
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|
974 |
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975 |
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|
976 def spanset(repo, start=0, end=None): |
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|
977 """Create a spanset that represents a range of repository revisions |
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|
978 |
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|
979 start: first revision included the set (default to 0) |
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|
980 end: first revision excluded (last+1) (default to len(repo)) |
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|
981 |
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|
982 Spanset will be descending if `end` < `start`. |
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|
983 """ |
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|
984 if end is None: |
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|
985 end = len(repo) |
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|
986 ascending = start <= end |
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|
987 if not ascending: |
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|
988 start, end = end + 1, start + 1 |
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|
989 return _spanset(start, end, ascending, repo.changelog.filteredrevs) |
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|
990 |
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|
991 |
32818
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|
992 class _spanset(abstractsmartset): |
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|
993 """Duck type for baseset class which represents a range of revisions and |
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|
994 can work lazily and without having all the range in memory |
20737
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diff
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|
995 |
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|
996 Note that spanset(x, y) behave almost like xrange(x, y) except for two |
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|
997 notable points: |
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|
998 - when x < y it will be automatically descending, |
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|
999 - revision filtered with this repoview will be skipped. |
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|
1000 |
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|
1001 """ |
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1002 |
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|
1003 def __init__(self, start, end, ascending, hiddenrevs): |
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|
1004 self._start = start |
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|
1005 self._end = end |
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|
1006 self._ascending = ascending |
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|
1007 self._hiddenrevs = hiddenrevs |
20521
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|
1008 |
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|
1009 def sort(self, reverse=False): |
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|
1010 self._ascending = not reverse |
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1011 |
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|
1012 def reverse(self): |
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|
1013 self._ascending = not self._ascending |
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1014 |
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|
1015 def istopo(self): |
38e0c83c7ee4
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|
1016 # not worth the trouble asserting if the two sets combined are still |
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|
1017 # in topographical order. Use the sort() predicate to explicitly sort |
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|
1018 # again instead. |
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|
1019 return False |
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|
1020 |
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|
1021 def _iterfilter(self, iterrange): |
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|
1022 s = self._hiddenrevs |
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|
1023 for r in iterrange: |
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|
1024 if r not in s: |
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|
1025 yield r |
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|
1026 |
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|
1027 def __iter__(self): |
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|
1028 if self._ascending: |
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|
1029 return self.fastasc() |
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|
1030 else: |
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|
1031 return self.fastdesc() |
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1032 |
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|
1033 def fastasc(self): |
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|
1034 iterrange = pycompat.xrange(self._start, self._end) |
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1035 if self._hiddenrevs: |
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|
1036 return self._iterfilter(iterrange) |
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1037 return iter(iterrange) |
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1038 |
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|
1039 def fastdesc(self): |
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|
1040 iterrange = pycompat.xrange(self._end - 1, self._start - 1, -1) |
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1041 if self._hiddenrevs: |
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1042 return self._iterfilter(iterrange) |
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|
1043 return iter(iterrange) |
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|
1044 |
21201
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|
1045 def __contains__(self, rev): |
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|
1046 hidden = self._hiddenrevs |
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|
1047 return (self._start <= rev < self._end) and not ( |
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parents:
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|
1048 hidden and rev in hidden |
2372284d9457
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|
1049 ) |
20482
a979078bd788
revset: added spanset class to represent revision ranges
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20481
diff
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|
1050 |
20716
fa1ac5faa7c4
revset: added __nonzero__ method to spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20714
diff
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|
1051 def __nonzero__(self): |
fa1ac5faa7c4
revset: added __nonzero__ method to spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
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diff
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|
1052 for r in self: |
fa1ac5faa7c4
revset: added __nonzero__ method to spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
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diff
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|
1053 return True |
fa1ac5faa7c4
revset: added __nonzero__ method to spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
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diff
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|
1054 return False |
fa1ac5faa7c4
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Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20714
diff
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|
1055 |
31476
413b44003462
py3: add __bool__ to every class defining __nonzero__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
31446
diff
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|
1056 __bool__ = __nonzero__ |
413b44003462
py3: add __bool__ to every class defining __nonzero__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
31446
diff
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|
1057 |
20484
0f1ef9e9e904
revset: added operations to spanset to duck type baseset
Lucas Moscovicz <lmoscovicz@fb.com>
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20483
diff
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|
1058 def __len__(self): |
20521
1850a7f5fb66
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Lucas Moscovicz <lmoscovicz@fb.com>
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diff
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|
1059 if not self._hiddenrevs: |
1850a7f5fb66
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Lucas Moscovicz <lmoscovicz@fb.com>
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diff
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|
1060 return abs(self._end - self._start) |
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|
1061 else: |
1850a7f5fb66
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Lucas Moscovicz <lmoscovicz@fb.com>
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diff
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|
1062 count = 0 |
21205
e2031c8ca4f8
revset: also inline spanset._contained in __len__
Pierre-Yves David <pierre-yves.david@fb.com>
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diff
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|
1063 start = self._start |
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diff
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|
1064 end = self._end |
20521
1850a7f5fb66
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Lucas Moscovicz <lmoscovicz@fb.com>
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diff
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|
1065 for rev in self._hiddenrevs: |
21284
3e53a64345c1
revset: cosmetic changes in spanset range comparison
Pierre-Yves David <pierre-yves.david@fb.com>
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diff
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|
1066 if (end < rev <= start) or (start <= rev < end): |
20521
1850a7f5fb66
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|
1067 count += 1 |
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|
1068 return abs(self._end - self._start) - count |
20484
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diff
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|
1069 |
20725
cf628b50afbb
revset: added isascending and isdescending methods to smartset classes
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20724
diff
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|
1070 def isascending(self): |
23826
c90d195320c5
revset: fix spanset.isascending() to honor sort() or reverse() request
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|
1071 return self._ascending |
20725
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|
1072 |
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|
1073 def isdescending(self): |
23826
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diff
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|
1074 return not self._ascending |
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|
1075 |
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|
1076 def first(self): |
88dad916c008
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|
1077 if self._ascending: |
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|
1078 it = self.fastasc |
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1079 else: |
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|
1080 it = self.fastdesc |
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|
1081 for x in it(): |
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1082 return x |
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|
1083 return None |
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|
1084 |
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|
1085 def last(self): |
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|
1086 if self._ascending: |
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|
1087 it = self.fastdesc |
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1088 else: |
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|
1089 it = self.fastasc |
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|
1090 for x in it(): |
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|
1091 return x |
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|
1092 return None |
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|
1093 |
32821
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|
1094 def _slice(self, start, stop): |
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|
1095 if self._hiddenrevs: |
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|
1096 # unoptimized since all hidden revisions in range has to be scanned |
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|
1097 return super(_spanset, self)._slice(start, stop) |
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|
1098 if self._ascending: |
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|
1099 x = min(self._start + start, self._end) |
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|
1100 y = min(self._start + stop, self._end) |
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|
1101 else: |
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|
1102 x = max(self._end - stop, self._start) |
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|
1103 y = max(self._end - start, self._start) |
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|
1104 return _spanset(x, y, self._ascending, self._hiddenrevs) |
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|
1105 |
35901
f0827211eb1f
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parents:
35838
diff
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|
1106 @encoding.strmethod |
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|
1107 def __repr__(self): |
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|
1108 d = {False: b'-', True: b'+'}[self._ascending] |
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|
1109 return b'<%s%s %d:%d>' % (_typename(self), d, self._start, self._end) |
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|
1110 |
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|
1111 |
32818
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diff
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|
1112 class fullreposet(_spanset): |
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|
1113 """a set containing all revisions in the repo |
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|
1114 |
24204
d2de20e1451f
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|
1115 This class exists to host special optimization and magic to handle virtual |
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|
1116 revisions such as "null". |
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|
1117 """ |
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|
1118 |
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|
1119 def __init__(self, repo): |
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|
1120 super(fullreposet, self).__init__( |
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|
1121 0, len(repo), True, repo.changelog.filteredrevs |
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1122 ) |
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|
1123 |
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|
1124 def __and__(self, other): |
23139
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23127
diff
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|
1125 """As self contains the whole repo, all of the other set should also be |
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|
1126 in self. Therefore `self & other = other`. |
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|
1127 |
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|
1128 This boldly assumes the other contains valid revs only. |
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|
1129 """ |
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|
1130 # other not a smartset, make is so |
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|
1131 if not util.safehasattr(other, b'isascending'): |
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|
1132 # filter out hidden revision |
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|
1133 # (this boldly assumes all smartset are pure) |
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|
1134 # |
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|
1135 # `other` was used with "&", let's assume this is a set like |
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|
1136 # object. |
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|
1137 other = baseset(other - self._hiddenrevs) |
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|
1138 |
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|
1139 other.sort(reverse=self.isdescending()) |
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|
1140 return other |